Technical data

Device Mapping
B-4
Range (hexadecimal) Function
2F8 - 2FF COM2
378 - 37A LPT1
388 - 38B Audio, FM music synthesizer
3BC - 3BE LPT3
3E8 - 3EF COM3
3F0 - 3F7 Diskette (floppy disk) controller
3F6 - 3F7 Primary/secondary IDE controller (alt status, device address)
3F8 - 3FF COM1
4D0 Edge/level control register - INTCNTRL1
4D1 Edge/level control register - INTCNTRL2
CF8 - CFF PCI configure space control register